392 - How We Know a Supermassive Black Hole Lurks in the Center of Our Galaxy
11 min

Not even light can escape a black hole's gravitational pull, so how do we actually know they exist? And what's the deal with the supermassive black hole at the center of the Milky Way?

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Curiosity Daily
Curiosity Daily
The Stressful Psychology of a Ghosted Email
Learn about how a ghosted email causes different stress than a rude response does, the 15-year grudge match between rival dino hunters known as The Bone Wars, and crown shyness, the forest’s version of social distancing. Ignoring someone's email and drafting a rude response stress people out in similar but different ways by Kelsey Donk What new research reveals about rude workplace emails. (2020). ScienceDaily. https://www.sciencedaily.com/releases/2020/09/200925113648.htm  Yuan, Z., Park, Y., & Sliter, M. T. (2020). Put you down versus tune you out: Further understanding active and passive e-mail incivility. Journal of Occupational Health Psychology, 25(5), 330–344. https://doi.org/10.1037/ocp0000215 Zhenyu Yuan,YoungAh Park. (2020, July 21). The Psychological Toll of Rude E-mails. Scientific American. https://www.scientificamerican.com/article/the-psychological-toll-of-rude-e-mails/  The Bone Wars Were a 15-Year Grudge Match Between Rival Dino Hunters by Reuben Westmaas The Two Paleontologists Who Had a Bone to Pick with Each Other | Detours | Prehistoric Road Trip. (2020, June 7). WTTW Chicago. https://interactive.wttw.com/prehistoric-road-trip/detours/the-two-paleontologists-who-had-a-bone-to-pick-with-each-other  Engber, D. (2013, August 7). A Brilliant Paleontologist, Unfit for Battle in the Bone Wars. Slate Magazine; Slate. https://slate.com/business/2013/08/dinosaur-bone-wars-othniel-charles-marsh-edward-drinker-cope-and-their-forgotten-rival.html  Crown shyness is how trees practice social distancing by Steffie Drucker McVean, A. (2018, September 19). Trees avoid touching each other due to "crown shyness." The results are beautiful webs of leaves. Office for Science and Society. https://www.mcgill.ca/oss/article/did-you-know/trees-avoid-touching-each-other-due-crown-shyness-results-are-beautiful-webs-leaves  Osterloff, Emily. (2020) Crown shyness: are trees social distancing too? Nhm.Ac.Uk. https://www.nhm.ac.uk/discover/crown-shyness-are-trees-social-distancing.html  Wu, K. (2020, July 6). Some trees may “social distance” to avoid disease. Nationalgeographic.com. https://www.nationalgeographic.com/science/2020/07/tree-crown-shyness-forest-canopy/  MENG, S. X., RUDNICKI, M., LIEFFERS, V. J., REID, D. E. B., & SILINS, U. (2006). Preventing crown collisions increases the crown cover and leaf area of maturing lodgepole pine. Journal of Ecology, 94(3), 681–686. https://doi.org/10.1111/j.1365-2745.2006.01121.x  ‌Crepy, M. A., & Casal, J. J. (2014). Photoreceptor-mediated kin recognition in plants. New Phytologist, 205(1), 329–338. https://doi.org/10.1111/nph.13040  Ballare, C. L., Sanchez, R. A., Scopel, A. L., Casal, J. J., & Ghersa, C. M. (1987). Early detection of neighbour plants by phytochrome perception of spectral changes in reflected sunlight. Plant, Cell and Environment, 10(7), 551–557. https://doi.org/10.1111/1365-3040.ep11604091  Subscribe to Curiosity Daily to learn something new every day with Ashley Hamer and Natalia Reagan (filling in for Cody Gough). You can also listen to our podcast as part of your Alexa Flash Briefing; Amazon smart speakers users, click/tap “enable” here: https://www.amazon.com/Curiosity-com-Curiosity-Daily-from/dp/B07CP17DJY  See omnystudio.com/listener for privacy information.
14 min
Brain Science with Ginger Campbell, MD: Neuroscience for Everyone
Brain Science with Ginger Campbell, MD: Neuroscience for Everyone
Ginger Campbell, MD
BS 178 Peter Sterling
This month's episode of Brain Science features neuroscientist Peter Sterling sharing the key ideas for his new book What Is Health? Allostasis and the Evolution of Human Design. In recent years neuroscientists have developed a growing appreciation of the predictive functions of the brain. Sterling takes this principle to the next level by asking what this means for human health. He argues that medicine's traditional focus on homeostasis ignores the much larger role of what he calls allostasis, which is a word he actually coined many years ago to capture the idea that the brain's predictive function is critical to health. His book explores the ancient origins of both allostasis and homeostasis with an emphasis on why recent changes in the human life style contribute to the health problems of modern life. One goal of this episode is to remind listeners that understanding how the brain works may be the key to our future survival. Links and References: * What Is Health? Allostasis and the Evolution of Human Design by Peter Sterling * Principles of Neural Design by Peter Sterling and Simon Laughlin * Peter Sterling (University of Pennsylvania) * Please visit http://brainsciencepodcast.com for additonal references and episode transcripts. Please Visit Our Sponsors: * TextExpander at textexpander.com/podcast * The Neurology Minute (podcast) from the American Academy of Neurology Announcements: * _Brain Science_ comes out on 4th Friday each month. * Support Brain Science by buying Are You Sure? The Unconscious Origins of Certainty by Virginia "Ginger" Campbell, MD. Autographed copies are now available. * Learn more ways to support Brain Science at http://brainsciencepodcast.com/donations * Sign up for the free Brain Science Newsletter to get show notes automatically every month. You can also text brainscience to 55444 to sign up. * Check out the free Brain Science Mobile app for iOS, Android, and Windows. (It's a great way to get both new episodes and premium content.) * Send email to brainsciencepodcast@gmail.com or post voice feedback at http://speakpipe.com/docartemis. Connect on Social Media: * Twitter: @_docartemis_ * Facebook page: _http://www.facebook.com/brainsciencepodcast_ Contact Dr. Campbell: * Email: brainsciencepodcast@gmail.com * Voicemail: _http://speakpipe.com/docartemis_
22 min
A Sustainable Mind - environment & sustainability podcast
A Sustainable Mind - environment & sustainability podcast
Marjorie Alexander
077: Kind Cup - Bringing Innovation to Menstrual Cups and the Feminine Hygiene Industry with Christine Brown
Kind Cup Kickstarter Campaign: https://www.kickstarter.com/projects/kindcup/kind-cup-the-innovative-menstrual-cup?ref=72obwi&token=02b39bee   Visit our site for a full transcript of this episode at www.ASustainableMind.com/077      Founder and designer of Kind Cup, Christine Brown, grew up in a small agricultural beach town in Southern California. A sixth-generation Carpinterian, Brown is a part-time avocado farmer, and American Sign Language teacher and advocate. Brown studied Critical Social Thought at Mount Holyoke College, and Deaf Studies: Cultural Studies for graduate school in Washington D.C. at Gallaudet University.     In this episode Marjorie and Christine Brown discuss: * How menstrual cups work and why they can be a much better alternative to tampons and pads. * How Christine came up with the idea for Kind Cup.  * The design elements that make Kind Cup unique. * Marjorie’s personal experiences with menstrual cups over the last 15 years and why she loves the Kind Cup design.  * What to consider when choosing a menstrual cup that works best with your body and lifestyle.   Resources from Christine Brown: * Direct Relief - Kind Cup's non-profit partner (DirectRelief.org) - Direct Relief is a humanitarian aid organization, active in all 50 states and more than 80 countries, with a mission to improve the health and lives of people affected by poverty or emergencies – without regard to politics, religion, or ability to pay. * Here is the press release about their work with Kind Cup https://www.kindcup.com/blogs/news/podcast-with-direct-relief-on-period-poverty * Intersectional Environmentalist Group (IntersectionalEnvironmentalist.com) - A platform for resources, information, and action steps to support intersectional environmentalism and dismantle systems of oppression in the environmental movement, led by environmental activists and sustainability advocates. * Put a Cup in It (PutACupInIt.com) - A collection of resources about reusable menstrual products overall and great general info if you are new to the conversation about menstrual cups * The Alchemist by Paulo Coelho   Connect with Christine Brown and Kind Cup: * Website: https://www.kindcup.com/ * Facebook: https://www.facebook.com/kindcup * Instagram: https://www.instagram.com/kind.cup/ * Kickstarter Campaign: https://www.kickstarter.com/projects/kindcup/kind-cup-the-innovative-menstrual-cup?ref=72obwi&token=02b39bee   Connect with Marjorie Alexander: * Instagram: https://www.instagram.com/asustainablemind/ * Twitter: https://twitter.com/SustainableMind * Facebook: https://www.facebook.com/asustainablemind/ * Website: asustainablemind.com     Want to help us spread the word?   Post a screenshot of ASM in your favorite listening app and tag us on your Instagram story!   Subscribe, Rate & Review ASM on Apple Podcasts: ASustainableMind.com/Apple
41 min
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